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14 questions total (file attached) not due till Sunday 11:50
14 questions total (file attached) not due till Sunday 11:50 pm (Pacific timezone)Question 1
In order to determine if smoking causes cancer, researchers surveyed a large sample of adults. For each adult they recorded whether the person had smoked regularly at any period in his or her life and whether the person had cancer. They then compared the proportion of cancer cases in those who had smoked regularly at some time in their life with the proportion of cases in those who had never smoked regularly at any point in their life. The researchers found there was a higher proportion of cancer cases among those who had smoked regularly than among those who had never smoked regularly. This is
Question 1 options:
an observational study.
an experiment, but not a doubleblind experiment.
a doubleblind experiment.
There are 15 questions total (attached file), it is due by
There are 15 questions total (attached file), it is due by 4pm.
Question 1
A particularly common question in the study of wildlife behavior involves observing contests between 'residents' of a particular area and 'intruders.' In each contest, the 'residents' either win or lose the encounter (assuming there are no ties). Observers might record several variables, listed below. Which of these variables is categorical?
Question 1 options:
The duration of the contest (in seconds).
The number of animals involved in the contest.
Whether the 'residents' win or lose.
The total number of contests won by the 'residents.'
The sides of a square are 3cm long. One vertex of the square
The sides of a square are 3cm long. One vertex of the square is at 4,2 on a square coordinate grid marked in centimeter units. Which of the following points could also be a vertex of the square
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